Ingot-mold.



E. E. SLICK.

INGOT MOLD.

APPLICATION FILED MAY 10, 1916.

Patented Dec. 5, 1916.

HEET I.

1 v.21 will 2 SHEETS-s WITNESSES E. E. SLICK.

INGOT MOLD.

APPLICATION FILED MAYIO. 191s.

Patented Dec. 5,1916.

2 SHEETS-SHEET 2.

ATTORNE WITNESSES:

INGOT-MOLD.

aaoaeaa Specification .of Letters Patent.

Patented Dec. 5, 191m.

Application filed May 1c, 1916. Serial No. 96,473.

To all whom it may concern Be it known that I, EDWIN E. SLICK, a citizen of the United States, residing in Westmont Borough, in the county of Cambria and State of Pennsylvania, (whose post-office address is Johnstown, Pennsylvania,) have invented certain new and useful Improvements in Tngot-Molds; and I do hereby declare the following to be -a full, clear, and exact description of the invention, such as will enable others skilled'in the art to which it appertains to make and use the same. 7

My invention relates to an ingot mold with special reference to the construction of the upper removable portion thereof, which is provided with a refractory non-conducting lining, adapted to maintain the metal liquid therein and to concentrate the piping cavity in the upper portion so that the lower part or the body of the ingot itself may be solid and free from imperfections.

Themold itself is preferably metallic, although it may be made of other material, or may comprise a flask lined with sand, loam, bricks or other refractories. My invention, however, is particularly applicable for use with metal molds, and ll will therefore describe it'in connection with such.

The sinkhead portion or upper part of my mold comprises generally a metallic casing, open top and bottom, of rectangular, octagonal or other form, as desired, preferably tapering upwardly, that is, with its smaller end upward, so that it may be readily withdrawn from the metal which is cast therein. 1 may make this taper more or less and prefer to make it comparatively small, so as to maintain the upper portion of the sinkhead as large as possible, thereby forming a considerable body of metal in which the shrinkage cavity will form entirely therein in such'a way that it will not communicate with the body of the ingot. The side of the metallic casing 1s preferably made in one piece and provided with lifting lugs, and has its bottom or lower end provided with a plate having .a large central opening therein, Which plate may be adapted to rest on the upper edges of the metal ingot mold. Refractory materials, such as bricks of general prismatic form are introduced into this casing from its lower and larger end, and these bricks are slightly tapered on their edges to accom modate themselves to the tapered conformation of the casing, so that they cannot be withdrawn from the upper and smaller portion of the casing. The closing plate is then jections adapted to fit within the opening in I the metallic mold, thereby locating it in position and sealing the joint between the top and the mold, thereby preventing the formation of laterally projecting fins, which would make irregularities on the ingot or interfere with the separation of the top from the ingot, or these projections may be omitted if desired.

By means of this construction, I am enabled to provide a top or sinkhead portion having a non-conducting lining of refractory materials or bricks of substantially uniform thickness throughout, thereby conducing to economy of materials, and this lining is easily retained in place by the lower clos-. ing plate, while held in place by the slight taper of the inclosing flask or casing.

After my sinkhead top is placed on top of a mold in position for operation, the mold is filled with molten steel or other metal, also filling the sinkhead top portion, and by reasonof the large contents of the sinkhead portion and the fact that it is pro vided with a refractory and non-conducting lining, the heat is not dissipated therefrom, so that the metal therein remains fluid for a considerable time, allowing the shrinkage cavity to form therein, as-the excess metal from the sinkhead top feeds downwardly into the body of the ingot, causing the body portion of the-ingot to become solid. I Having thus given a general description of my invention, I will now in order to make the matter more clear refer to the accompanying two sheets of drawings forming part of this specification and in which like characters refer to like parts.

Figure 1 is a vertical sectional elevation through the top of a metal ingot mold with my improved non-conducting top thereon of generally rectangular section, this view being taken on the line ][l[ of Fig. 2; Fig. 2 is a top plan view of the aforesaid ingot mold top; Fig. 3 is a top plan view of the retaining plate; Fi 's. ,4 and illustrate the side and end lining ricks. Fig. 6 illustrates in top plan ,a modified form of ingot mold and top of octagonabshape; Fig. 7 is a vertical sectional elevation through the top of the metal ingot mold andnon-conducting top taken on the line VIIVII of Fig. 6 and Fig. 8 illustrates in plan an octagonal nonconducting ingot mold top seated on top of a substantially square ingot mold.

Referring first to the characters of reference on Figs. 1 to 50f the drawings, 1

. represents thev upper portion of an ingot mold of substaritially rectangular cross section, 2 are the lifting lugs of the same, 3 is the upper portion of the ingot contained therein, 4 is the outer casing of the sinkhead top portion, 5 are the lifting lugs thereof, 6 are ears or projections extending, as illustrated, from the lower corners of the casing, 7 are holes orperforations 'formed in said ears, 8 is the retaining plate adapted-to hold the refractory lining 13 and 14, composed" of bricks, or other material, in place from slipping downwardly when the ingot top is in position, 9 isa projection or flange extending downwardly into the ingot mold from th e retaining plate, 10.are ears or projections formedon the corners of the retaining plate corresponding to the projections 6 ofv the casing, these ears being provided with perforations or holes 11,

, adapted to register with the perforations? in the ears 6 of the casing 4, 12 are key bolts adapted to be inserted through the openings aforesaid and hold the retainin position against the casing 4, t ereby retaining the lining 13 and 14 in position therein, 15 represents the sinkhead portion of the ingot, 16 is the shrinkage cavity therein, 17 are the keys for the bolts adapted to secure the retaining plate 8 to the casin 4. I eferring now to Figs; 6, 7 and 8: 18 represents a substantially octagonal ingot mold, 19the lifting lugs thereof, 20 represents a substantially rectangular ingot mold, provided with lifting lugs 21, the ingot in the octagonal mold is indicated as 22, while 23 is the sinkh'ead portion of said ingot and 24 is the shrinkage cavity therein. The outer casing on-- the octagonal ingot mold is indicated as 25, provtded'with lifting lugs 26 and projecting cars 27, and with a retaining plate 28, adapted to conform gen-- erally to the shape of the mold. The downwardly extending flange on.the retaining plate 28 is indicated as 29, the retaining plate bein secured to the casing 25 by means-of t e key-bolts 80 and the keys 31 in a manner similar to that further illustrated in Figs. 1 and 2. The-refractory material or bricks lining the octagonal in ot mold top are indicated as 32, these being preferably all of the same size .and' form plate in 7 and of substantially uniform thickness from top1 to bottom, in order to economize materia I have found that it is possible to use an ingot mold top of this kind many times, as on account of its construction and slight upward taper, it can be withdrawn from the sinkhead and replaced on another mold ready for further use, so that the cost of this construction per ton of ingots is very slight, as compared with the cost of other,

forms which can only be used once. The initial cost of non-conducting refractories for a top of this kind is also small, as the thickness thereof may be made uniform and of the minimum amount to produce the effects desired, and this is not true of tops which are lined with bricks or other material of tapering or varying thicknesses, as

though I have shown and described my improvements in considerable detail, I do not wish to be limited to the exact and specific detailsshown and described, but may' use such substitutions, modifications or equivalents thereof, as are embraced within the scope of my invention, or as pointedout in the claims. 1

Having thus described my invention what I claim and desire to secure by Letters Patent is V 1. A mold to comprising a removable casing, a remova 1e retaining plate mounted below and projecting casing, a refractoryv ning within said cassaid.

2. A mold top comprising a casing 0 en top and bottom, a removable retaining p ate mounted below and projectin inwardly from said casing, and a non-con ucting lining composed of bricks of uniform thicking supported by the retaining plate afore- -ness, supported by the retaining plate.

inwardly from said 3. A mold top comprising a casing open top and bottom, a retaining plate mounted below and projecting inwardly from said casing and adapted to project downwardly into the mold, and a non-conducting lining composed of bricks of uniform thickness, supported by the'retaining plate.

4. A mold top comprising a casing larger at its lower end, a removable retaining plate mounted below said casing and projecting woman inwardly thereof and supporting a refractory lining mounted within said casing.

5. A mold top comprisin' a casing, a retaining plate mounted be ow said casing and projecting inwardlythereof, a plurality of non-conducting bricks of substantially uniform thickness mounted within said casing and supported by the retaining. plate, said retaining plate being provided with a flange or pro ection adapted to extend within the upper portion of the ingot mold.

6. A mold top comprising a casing larger at its lower end, a removable retaining plate mounted adjacent to the lower end of said casing and projecting inwardly thereof, means for securing sa1d plate to said casing, and a plurality of bricks of refractory material of substantially uniform thickness mounted within said casing and supported by said retaining plate.

7. A mold top comprisin a casing larger at its lower end, a removal) e retaining plate mounted against the lower end of sald casing and adapted to project inwardly and downwardly thereof, means for securing said plate to said casing, and a plurality of portions of refractory material of substantially uniform thickness mounted within said casing and supported by said retaining plate.

EDWIN E. SLICK. 

